[U-Boot] [PATCH v2 13/13] mxc nand: Add support for i.MX5

Scott Wood
2012-11-20T23:03:47Z

On 11/16/2012 07:43:03 PM, Beno?t Th?baudeau wrote:
> Hi Scott,
>
> On Saturday, November 17, 2012 1:01:03 AM, Scott Wood wrote:
> > On 11/16/2012 02:28:16 PM, Beno?t Th?baudeau wrote:
> > > Also, I've noticed that some of the oobfree fields of the
> > > nand_ecclayout
> > > structures in mxc_nand.c are slightly different from what can be
> > > found in Linux.
> > > Any idea about which one is correct (if any)?
> >
> > Unless there's an obvious error such as overlap with ECC or a bad
> > block
> > marker, there isn't really a right answer (except to the extent that
> > you're wasting bytes) -- but it's important that everyone agree. So
> > the answer is basically, "which compatibility would it hurt more to
> > break?"
> >
> > That said, the U-Boot ones make more sense to me in terms of not
> > having
> > strange missing bytes.
>
> I've just found this commit, which explains what's going on:
> http://git.kernel.org/?p=linux/kernel/git/next/linux-next.git;a=commitdiff;h=8c1fd89a85f898384df02217c09c98c2f39b4832

I don't understand the bit about "on 16bit flashes it is on byte 11" --
I thought with 16-bit NAND the bad block marker was always at offset
zero, even on small-page NAND.

-Scott